LB-2607 Leak and Seal Positive Pressure Strength Tester (High-Definition Touchscreen)
This method is applicable to plastic bottle caps conforming to the relevant standard. A puncture fixture is used to apply pressure to bottle samples, creating an internal–external pressure differential in the sample immersed in water. The release of gas from the sample is observed to evaluate its sealing performance.
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LB-2607 Leak and Seal Positive Pressure Strength Tester (High-Definition Touchscreen)
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Description
Product Introduction:
This method is applicable to plastic bottle caps conforming to the relevant standard. A puncture fixture is used to apply pressure to bottle samples, creating an internal–external pressure differential in the sample immersed in water. The release of gas from the sample is observed to evaluate its sealing performance.
Reference standard:
GB/17876, ASTM F1140, ASTM F2054, ISO 11607, GB 18454, GB/T 1004, GB/T 1005, GB 19741, BB/T 0003, QB/T 1871.
Test principle:
- Leak Test: After reaching the set pressure, maintain that pressure without replenishing it. If the pressure drop during the hold period exceeds the specified threshold, the sample is deemed non‑conforming; if the pressure drop remains within the threshold, the sample is deemed conforming.
- Burst test: Once the pressure reaches the threshold, the burst‑detection phase begins; the test is stopped when the pressure drops to within a specified percentage of the maximum pressure, at which point the system automatically releases the air. During this process, the screen displays the recorded maximum pressure value. Pressure is regulated via the pressure‑adjustment valve on the side of the device; it is recommended to increase the pressure gradually to prevent rapid pressurization, which could lead to uneven pressure distribution between the sensor and the sample interior and introduce measurement errors.
- Pressure Holding/Creep: Once the set pressure is reached, pressure holding begins. During the holding phase, if the pressure drops to (1 − accuracy%) of the set value, a compensating pressure boost is applied to maintain the target pressure. If, during the holding phase, the pressure decline reaches the predefined threshold, the specimen is deemed to have ruptured, the test is terminated, and the specimen is classified as non‑conforming.
- Creep to burst: After reaching the set pressure, maintain constant pressure. During the hold phase, if the pressure drops to (1 − accuracy%) of the set value, a pressure‑boosting step is performed to sustain the pressure. If, during the hold phase, the pressure drop reaches the predefined threshold, the test is deemed to have reached the sample’s burst point; pressure holding is then terminated, timing stops, and the timer is not reset.
- Large‑scale leakage: Use a dedicated clamping fixture to press the bag underwater, inflate the test bag to a specified pressure, and visually inspect for leaks. The test duration is manually controlled and can be stopped by pressing the stop button.
Product Features:
- Button controls make operation simpler and data results more intuitive.
- The test barrel is made of highly transparent acrylic, making it sturdy and durable.
- Specialized plastic bottle cap puncturing fixture, ensuring no air leakage.
- One-click operation: automatically start the test with a single click, automatically terminate the experiment, and automatically release pressure.
- It features a sample library with preset test parameters; includes a product test result marking function to retain historical test data; and provides graphical curves for more intuitive data visualization.
- 7-inch large display, supporting user permission management, Chinese–English language switching, data storage, and audit trail (optional)
Technical Specifications:
| Parameter Category | Parameter content |
| Host case dimensions | 300×300×300mm |
| Operating voltage | 50 Hz, AC 220 V |
| Pressure range | 0–500 kPa (optional 0–1000 kPa) |
| Total height of the test barrel | 390mm |
| Bottom dimensions of the test bucket | 250mm×250mm |
| Effective internal dimensions of the test barrel | Φ180mm×390mm |
| Measurement time | The time can be freely set up to 99,999 seconds (optional range: 0–9,999,999 seconds). |
| Time control accuracy | 1s |
| Work environment | -20~50℃ (When the temperature is between -20℃ and 0℃, the unit must be powered on and run for 3 minutes) |
| Air source | User-supplied (compressed air source) |
| Total number of hosts | Approximately 20 kg |
| Punching fixture | Customizable options available upon request. |
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FAQs
We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects
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Customer Reviews
European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester
From Thomas Bennett, Quality Director, UK plastic pipe factory
2026.06.05
★★★★★
“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”
Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment
From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute
2026.06.05
★★★★★
“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”
Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine
From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise
2026.06.05
★★★★★
“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”
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